Khadim Khawaja, Imran Khan Maher, Zulfiqar Ali Jatoi, Zulifqar Ali Zaur, Imtiaz Ahmed Tago, Muhammad Asif Peracha, Niaz Hussain Keerio 2022. Efficiency of Intra-Articular Platelet-Rich Plasma Injection in Grade I and Grade II Osteoarthritis in the Knee Joints: A Longitudinal Study. Pakistan Journal of Medical & Health Sciences. 16, 02 (Apr. 2022), 1019. DOI:https://doi.org/10.53350/pjmhs221621019.